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steps to reproduce:

- load world with mods (reproducible without the platform construction mod too)
- place a linked/infinity chest and put each of your 3 tiers of personal battery away
- head into remote view
- place a (tier 3) battery as shown on the picture
- confirm personal roboport is on and that there is a missing item request
- board the train and drive over the landmine
- notice the battery ghost is now gone from the grid, yet the alert remains

it is potentially caused by a removal proxy being created (first) by the equipment train stop mod, since this in a fresh world does not cause the issue:
/c game.player.selected.grid.order_removal(game.player.selected.grid.equipment[1])

regardless, that it is able to get into this state is a bug, possibly can crash during prototype changed validity checks and such

Can you reproduce this in the latest version? (2.0.32 or later)

Also, do you have exact steps to reproduce the issue from scratch?

During the process of trying to reproduce it i found an instance of lingering requests, not sure if its "exactly the same one", but reproducible nonetheless:

- install kry-vehicle-grids_2.1.15 (+ kry_stdlib_2.0.1)
- new world
- place enough rails for a locomotive
- /c battery = game.player.selected.grid.put{name = "battery-equipment", ghost = true}
- /c battery = game.player.selected.grid.put{name = "battery-equipment", ghost = true}
- notice 2 requests
- remove the 1 ghost from the locomotive grid
- notice 1 request still remains, without a ghost

The save itself also seems to still cause the initial glitch even in .33, additionally there might be a migration issue in general related to grids stored in items:

Thanks for the report. This is now fixed for 2.0.42.